2006 YAMAHA YFZ450 battery

Carburetor adjustment ...................... 8-75
Idle speed adjustment ...................... 8-77
Valve clearance adjustment ............. 8-77
Throttle lever adjustment .................. 8-79
Front brake pad inspection ............... 8-81
Rear brake pad inspection ............... 8-83
Brake fluid level inspection ............... 8-85
Brake fluid replacement .................... 8-91
Front brake lever free play ............... 8-93
Brake pedal height adjustment ......... 8-95
Parking brake adjustment ................. 8-97
Adjusting the rear brake light switch.... 8-101
Clutch lever free play adjustment .... 8-103
Drive chain slack check .................. 8-105
Adjusting the drive chain slack ....... 8-107
Lubricating the drive chain ............. 8-111
Cable inspection and lubrication .... 8-115
Brake pedal, brake lever and
clutch lever lubrication .................. 8-117
Front upper and lower arm pivot
lubrication ..................................... 8-121Rear arm pivot lubrication .............. 8-123
Wheel removal ............................... 8-125
Wheel installation ........................... 8-127
Battery ............................................ 8-129
Battery maintenance ...................... 8-133
Fuse replacement ........................... 8-135
Replacing a headlight bulb ............. 8-137
Headlight beam adjustment ............ 8-143
Tail/brake light ................................ 8-143
Troubleshooting .............................. 8-145
Troubleshooting chart ..................... 8-149
CLEANING AND STORAGE ................ 9-1
A. CLEANING ..................................... 9-1
B. STORAGE ..................................... 9-7
SPECIFICATIONS .............................. 10-1
Conversion table ................................. 11-1
9
10
11
5TG-9-62 1-3 5/13/05 10:06 AM Page 14

6-7
6. Completely close the throttle lever and start
the engine by pushing the start switch.
NOTE:
If the engine fails to start, release the start
switch, then push it again. Pause a few seconds
before the next attempt. Each cranking should
be as short as possible to preserve battery ener-
gy. Do not crank the engine more than 10 sec-
onds on each attempt.
7. If the engine is started with the starter
(choke) in position 1, the starter (choke)
should be returned to position 2to warm
up the engine. If the engine is started with
the starter (choke) in position 2, keep the
starter (choke) in this position to warm up
the engine.
8. Continue warming up the engine until it
idles smoothly and return the starter
(choke) to position 3before riding.
cC
See the “Engine break-in” section prior to
operating the engine for the first time.
5TG-9-62 5-6 5/13/05 1:45 PM Page 6-7

8-129
EBU03810
Battery
This machine is equipped with a sealed-type
battery. Therefore it is not necessary to check
the electrolyte or add distilled water in the bat-
tery. If the battery seems to have discharged,
consult a Yamaha dealer.
cC
Do not try to remove the sealing caps of the
battery cells. You may damage the battery.
5TG-9-62 9-11 5/12/05 6:14 PM Page 8-129

8-131
w
Battery electrolyte is poisonous and danger-
ous, causing severe burns, etc. It contains
sulfuric acid. Avoid contact with skin, eyes
or clothing.
Antidote:
EXTERNAL: Flush with water.
INTERNAL: Drink large quantities of water or
milk. Follow with milk of magnesia, beaten
egg or vegetable oil. Call a physician imme-
diately.
EYES: Flush with water for 15 minutes and
get prompt medical attention.
Batteries produce explosive gases. Keep
sparks, flame, cigarettes or other sources of
ignition away. Ventilate when charging or
using in an enclosed space. Always shield
your eyes when working near batteries.
KEEP OUT OF REACH OF CHILDREN.
5TG-9-62 9-11 5/12/05 6:14 PM Page 8-131

8-133
EBU03850
Battery maintenance
1. When the machine is not used for a month
or longer, remove the battery and store it in
a cool, dark place. Completely recharge
the battery before reinstallation.
cC
A special battery charger (constant
voltage/ampere or constant voltage) is
required for recharging a sealed-type bat-
tery. Using a conventional battery charger
may shorten the battery life.
2. Always make sure the connections are cor-
rect when putting the battery back in the
machine.
5TG-9-62 9-11 5/12/05 6:14 PM Page 8-133

8-149
EBU07240
Troubleshooting chart
Starting problems or poor
engine performance
2. Compression
Use the electric
starter to see if there
is compression.
3. Ignition
Remove the spark plug
and check the electrodes.
WetWipe clean with
dry cloth.
DryAttach spark plug cap
and ground to chassis.Use the electric
starter.Spark weak.
Spark good.Ignition system normal.
No spark.
Ask a Yamaha dealer to inspect.
Adjust the spark plug gap
or replace the spark plug.
There is compresson.Compression normal.
Ask a Yamaha dealer to inspect.No compression.
4. Battery
Use the electric
starter
Engine turns over
quickly.Battery is good.
Check the connections, and charge the battery if necessary.Engine turns over
slowly
Check the fuel
flow.
1. Fuel
Check if there is
fuel in the fuel
tank.
There is fuel.Turn the fuel
cock to “OFF”.
Remove the
fuel hose from
the fuel cock.Turn the fuel cock
lever to “ON”.No fuel.Fuel cock clogged.
Some fuel.Turn the fuel cock
lever to “RES”.Restart the engine.
No fuel.Supply fuel.
Clean the fuel
cock.
5TG-9-62 9-11 5/12/05 6:14 PM Page 8-149

9-9
4. Lubricate all control cables.
5. Block up the frame to raise all wheels off
the ground.
6. Tie a plastic bag over the exhaust pipe out-
let to prevent moisture from entering.
7. If storing in a humid or salt-air atmosphere,
coat all exposed metal surfaces with a light
film of oil. Do not apply oil to any rubber
parts or the seat cover.
8. Remove the battery and charge it. Store it
in a dry place and recharge it once a
month. Do not store the battery in an
excessively warm or cold place (less than
0 ° C or more than 30 °C).
NOTE:
Make any necessary repairs before storing the
machine.
5TG-9-62 9-11 5/12/05 6:14 PM Page 9-9

10-5
Model YFZ450V
Brake:
Front brake type Dual disc brake
operation Right hand operation
Rear brake type Single disc brake
operation Right foot operation
Suspension:
Front suspension Double wishbone
Rear suspension Swingarm (link suspension)
Shock absorber:
Front shock absorber Coil spring/Gas-Oil damper
Rear shock absorber Coil spring/Gas-Oil damper
Wheel travel:
Front wheel travel 230.0 mm
Rear wheel travel 270.0 mm
Electrical:
Ignition system D.C. C.D.I.
Generator system A.C. magneto
Battery type/voltage capacity GT7B-4/12V, 6.5 Ah
Headlight type: Krypton bulb
5TG-9-62 9-11 5/12/05 6:14 PM Page 10-5